倒"T"形叠合简支板的试验研究

利用实际工程中应用的倒"T"形板构件,根据叠合层和二次配筋的不同制作各种试验构件,采用普通标准粘土砖分级施加均布荷载的方法,进行了均布静荷载试验.研究结果表明:当倒"T"形板肋部面积合适且叠合面(构件翼缘)粗糙程度满足混凝土结构设计规范要求时,叠合面具有足够的粘结抗剪能力,能够保证叠合板的整体受力工作性能;叠合板后浇混凝土,通过二次配筋可以提高其跨中截面的受弯承载力,且可以较大幅度地提高叠合板的延性,从而增强建筑结构的抗震性能.

Experiment if inverted "T" simple supported composite slab

The experiment used the inverted "T" slab was made, according to the differences of composite stratum and the second reinforced manufactured in different experiment members, the way was adopted by steps to bring to bear the equipollent distribution loads with ordinary loam brick, have carried on equipollent distribution dead load test were carried on. The results show that when the rib areas of the inverted "T" slab are suitable and its coarse degree of the wing of invertible "T" satisfied with the requirement of code for designing concrete structures, the interface of two portions concrete of composite slab possess enough shearing resistant capacity, and it can ensure the entirely working performance of the composite slab: flexure bearing capacity in normal cross-section can be raised by means of second reinforce in later cast concrete of the composite slab, and the ductility of composite slab may be strengthened.